Planing-machine



(No Model.) I

F. H. GARVERIGH: PLANING MACHINE.

N0. 415,631. 7 Patented NOV. 19 1889.

n. PETERS, Phowmhugnpher. wzs'mn nm u. c.

UNITED STATES PATENT OFFICE.

FRANK H. GARVERICI-l, OF DAUPI-IIN, PENNSYLVANIA.

PLANlNG-MACHINE.

. X Y SPECIFICATION forming part of Letters Patent No. 415,631, datedNovember 19, 1889. Application filed March 12, 1889. Serial No. 302,974.(No model.)

To a whom it may concern.-

Be it known that I, FRANK H. GARVERIOH, a citizen of the United States,residing at Dauphin, in the county of Dauphin and State of Pennsylvania,have invented certain new and useful Improvements in Planing-Machines,of which the following is a fu'll and clear description, reference beinghad to the accompanying drawings, forming part of this specification, inwhich Figure l is a sectional View taken longitudinally through themachine. Fig. 2 is a plan view.

My invention relates to certain new and useful improvements in machinesfor planing shingles; and it consists in the construction andcombination of devices which I shall hereinafter fully describe andclaim.

To enable others skilled in the art to which my invention appertains tomake and use the same, I will now describe its construction and indicatethe manner in which the same is carried out.

I11 the said drawings,A represents any wellknown form of frame suitablefor a planingmachine, and having journal-boxes in which the journals ofthe feed-rolls a a and the lower rotary cutter-head B, are mounted, thesaid rolls and cutter-head being operated by any well-known means, as bythe belts Z) and c from the counter-shafts O C, which operate the lowercutter-head, and the gears D and E on the ends of the feed-rolls,whereby the latter are rotated to feed the unplaned shingles forward.The gears D and E are engaged by an intermediate pinion F on the end ofa stub=shaft G, which also carries a band-pulley driven by a belt (Zfrom a pulley on the counter-shaft O, as shown in Fig. 2.

A supplemental frameH, rising from the main frame, carries groovedjournal-boxes I and I, iilwvliicli the journals of the upper rolls m mare mounted, and said boxes are designed to have a vertical movement onthe guides e to permit the passage of the beveled shingle. The boxes Iand I are also provided with vertical rods f, which extendupwardlytherefrom and pass through the top or cap, plate of the frame H,and said rods are surrounded by coiled springs g, the ends of which restunder the cap-plate and on top of the boxes, as shown in Fig. 1, wherebythe upper rolls are held tightly against the shingle, but are permittedto yield to the gradual increasing thickness of the beveled shingle.Other boxes J in front of boxes I and I are mounted in the frame Hsimilar to the boxes I 1, they being constructed similar to the latterboxes, and receive the journals of the upper rotary cutter-head K, whichcarries a pulley h, driven by a belt from the countershaft 0, as shownin Fig. 2.

The j ournal-boxes J not only carry the journals of the uppercutter-head K, but also the journals of the forward roll L, and thisrollL and the upper cutter-head are so located with relation to eachother that the cutters 2' rotate in a path slightly higher than theplane described by the forward roll, whereby, when the shingle is movedforward by the feedrolls, its point passes beneath the rotarycutter-head K and passes forward under the forward roll. As the shinglecontinues in its forward movement, its increasing thickness causes theroll and its journal-boxes to be moved vertically to permit its passageand to permit the upper cutter-head to plane the upper surface of theshingle, and as the rotary cntter-head K has its bearing in the sameboxes as the forward roll the said outter-head is likewise verticallymoved, so that it must at all times retain its position relative to theroll, whereby the entire top surface of the shingle, except the point,is planed. As the shingle passes from beneath the upper cutter-head andforward roll, the springs which bear against the boxes cause the latterand the cutter-head and roll to return to their normal positions.

While the upper cutter-head planes the top surface of the shingle, itwill be understood that the lower cutter-head planes the lower surface,so that when the shingle emerges from the machine it is in a finishedcondition. It is also manifest that the journals of the roll m nearestthe cutter-head may be journaled in the. boxes which carry the uppercutter-head and forward roll without departing from the spirit of myinvention; but in this case the cutter-head will rotate in a planeslightly below the roll m and slightly above the forward roll L, so asto engage and plane the entire surface of the shingle after the point ofsaid shingle passes from beneath the roll m.

Having thus described my invention, what I 5 claim as new, and desire tosecure by Letters Patent, is-

An improved planing-machine consisting of a main frame, the feed-rollsCt a, and lower cutter-head journaled therein, a presser-roll Y IOmounted in adjustable journal-boxes near one end of the machine, asimilar roll near the lower cutter-head and mounted in adj ust-

